Handheld diagnostic instrument



FIG. 1 is a perspective view of the front of the handheld diagnostic instrument in open position;

FIG. 2 is a front elevational view of the handheld diagnostic instrument shown in FIG. 1;

FIG. 3 is a rear elevational view of the handheld diagnostic instrument shown in FIG. 1;

FIG. 4 is a left side elevational view of the handheld diagnostic instrument shown in FIG. 1;

FIG. 5 is a right side elevational view of the handheld diagnostic instrument shown in FIG. 1;

FIG. 6 is a top plan view of the handheld diagnostic instrument shown in FIG. 1;

FIG. 7 is a bottom plan view of the handheld diagnostic instrument shown in FIG. 1;

FIG. 8 is a perspective view of the back of the handheld diagnostic instrument shown in FIG. 1;

FIG. 9 is a perspective view of the front of the handheld diagnostic instrument in closed position;

FIG. 10 is a front elevational view of the handheld diagnostic instrument shown in FIG. 9;

FIG. 11 is a rear elevational view of the handheld diagnostic instrument shown in FIG. 9;

FIG. 12 is a left side elevational view of the handheld diagnostic instrument shown in FIG. 9;

FIG. 13 is a right side elevational view of the handheld diagnostic instrument shown in FIG. 9;

FIG. 14 is a top plan view of the handheld diagnostic instrument shown in FIG. 9;

FIG. 15 is a bottom plan view of the handheld diagnostic instrument shown in FIG. 9; and,

FIG. 16 is a perspective view of the back of the handheld diagnostic instrument shown in FIG. 9. 

The ornamental design for a handheld diagnostic instrument, as shown and described. 